Adding this amount of contrast has increased the cyan levels, which makes the image appear unnaturally blue. To adjust this, select to Image > Adjustments > Curves. Select Cyan in the Channel dropdown menu and decrease the cyan levels.
The image still has a strong cyan tint. To adjust this further go to Image > Adjustments > Selective Color. Select Neutral in the Colors dropdown menu and decrease the cyan percentage. In general, vintage imagery has a yellow tint due to age so use the Selective Color tool to add some yellow to the neutrals and take some cyan and magenta out of the whites.
The litho printing process layers up CMYK ink using plates. In vintage photographs it is common for these to misalign. To create this effect select Window > Channels then select a channel to misalign. Now go to Select > Select All, Edit > Copy, Edit > Paste. Using the arrow keys nudge the magenta layer so it’s slightly misaligned. Deselect the channel, Select > Deselect, and in the channels dialogue box click CMYK to view the full image.
The colours in the image are now quite bright but in vintage imagery everything is slightly faded and less vivid. To correct this you need to desaturate the image. Click Image > Adjustments > Hue/Saturation and decrease the saturation levels.